9149872 has 10 divisors (see below), whose sum is σ = 17727908. Its totient is φ = 4574928.

The previous prime is 9149869. The next prime is 9149873. The reversal of 9149872 is 2789419.

9149872 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (9149873) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 285918 + ... + 285949.

Almost surely, 2^9149872 is an apocalyptic number.

It is an amenable number.

9149872 is a deficient number, since it is larger than the sum of its proper divisors (8578036).

9149872 is a wasteful number, since it uses less digits than its factorization.

9149872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 571875 (or 571869 counting only the distinct ones).

The product of its digits is 36288, while the sum is 40.

The square root of 9149872 is about 3024.8755346295. The cubic root of 9149872 is about 209.1566478978.

It can be divided in two parts, 91498 and 72, that multiplied together give a palindrome (6587856).

The spelling of 9149872 in words is "nine million, one hundred forty-nine thousand, eight hundred seventy-two".